Stop motion for gill box and drawing frames



Aug. 25, 1925. 1,551,118

- E. PLATIAU STOP MOTION FOR @ILL BOX AND DRAWINQFRAMES Filed oct. 1e.1924 2 shees-sneer 1 ai Q i "l i S5 a? @MM M Aug; 25, 1925. 1,551,118

E. PLATIAU STOPMOTION FOR @ILL BOX AND DRAWING FRAMES F1133 (1ct. 16,1924 2 Sheets-Shui 2 v I for.' nl? ELLZW,

I) l l n M Patented Aug. 25, 1925.

UNITED STATES EMILE PLATIAU', OF WOONSOGKET, RHODE ISLAND.

STOP MOTION FOR GILL BOX AND DRAWING FRAMES.

Application led October 16, 1924. Serial No. 743,881.

To all whom t may concern:

Be it known that I, EMILE PLATIAU, of IVoonsocket, in the county ofProvidence and State of Rhode Island, a citiz-en of France, haveinvented certain new and use.- ful Improvements in Stop Motions fo-rGill Box and Drawing Frames, of which the fol` lowing is aspecification.

This invention has for its object the provision of a simple,direct-acting, and efficient mechanism whereby the operation of adrawing frame will be automatically arrested when a sliver breaks, andthe actuating element will be automatically returned to normal positionas the motion of the machine is stopped.

One embodiment of the invention is illusn trated in the accompanyingdrawings and will be hereinafter fully described, the novel featuresbeing particularly pointed out in the appended claims.

In the drawings, Fig. 1 is a view partly in front elevation and partlyin transverse section showing my improved stop-motion mechanism mountedon a drawing frame.

Fig. 2 is a side elevation,

Fig. 3 is a longitudinal section on the line 3-3 of Figure 1,

Fig. 4 is a fragmentary rear view.

The main frame 1 of the machine may be of any approved construction, andthe drawing rolls 2 are mounted thereon in the usual manner and drivenfrom the main shaft 3 by any convenient arrangement of gearing (notshown). The main shaft 3 is equipped with fast and loose pulleys,indicated at 4 and 5, respectively, and the action of the mechanism ofmy invention is to ship the belt 6 from the fast pulley 4 to the loosepulley 5.

In carrying out my invention, there is secured across the front of themachine, a box 7 having openings 8 in its top each of which receives astem 9 having a sliver-engaging ring 10 at its upper end. A sliver,indicated at 11, passes through each ring to the drawing rolls and,under normal working conditions, the rings are suspended by the sliversin the positions shown in the drawings. Secured within the box 7 at thetop thereof, is a uide frame 12 which includes upper an lower platesprovided with openings 13 aligned vertically with the openings 8 toreceive and guide the stems 9 in rectilinear paths. Extending across thefront of the main frame within the box 7 and below the guide frame 12is' a bed 13, which is arranged in the path of the stems 9 to be struckby any one of them which may be released. The bed is carried by andbetween arms 14 which are pivoted between their ends, as at 15, to theside members of the main frame and have their inner ends, connected by arod 16 whereby they are prevented from spreading. From one end of thebed, a tapper 17 projects through a slot 18 in the adJacent end of thebox to extend over the heel 19 of a trip lever or rocking arm 20, theslot 18 describing an arc concentric with the pivot 15. The rocking armor lever 2O is fulcrumed between its ends upon the side of the mainframe and the heel 19 is formed at the lower end of a hanger 21depending from its front end, while a link 22 is pivoted to and dependsfrom its rear end. A shipper bar 23 is slidably mounted transversely inthe main frame below and to the rear of the main shaft 3, and abeltshifting fork 24 is secured on said bar near the outer end thereofto engage the driving belt 6. The fork is provided with a head 25 whichencircles and is secured to the shipper bar and is provided with adepending lug 26 on its under side. Below the shipper bar, a knockolfrod 27 is slidably mounted in a sleeve or casing 28 which is supportedby a bracket 29 secured upon the side of the main frame. The knock-0drod extends through both ends of the casing 28 and its outer end isturned up to form a finger 30 bearing against the inner side of the lug26. Within the casing 28, a spring 31 is coiled around the knock-0E rodand bears at its ends against the inner end of the casing and anabutment 32 on the rod, the spring tending constantly to expand so thatthe finger 30 will be held in contact with the lug 26 and the rod willbe under a constant tendency to move outwardly. To restrain the knockoffrod, a notch 33 is formed in its up er side to be engaged by the freeend of a og 34 which is pivotally mounted on a pin 34a at the side ofthe main frame adjacent the knock-ofi' rod and to which the lower end ofthe link 22 is pivoted, a torsion spring 35 being coiled around thepivot of the do and having one end attached to the dog an its oppositeund attached to the pivot where by thel dog will be normally held to theknock-olif rod and in engagement with the notch 33 themin.

Secured to the shipper bar between the side members of the main frame,is a keeper arm 36 which extends from the bar to a point below the box 7Where it is upturned, as at 37, to pass through a slot 38 in the bottomof the box, the upturned arm 37 terminating in a forwardly projectingfinger 39. Pivotally mounted in the box 7 below the finger 39, is abed-lifter 40 which extends upwardly and inwardly from its pivot acrossthe path of and in contact with the under side of the keeper finger. Aretractile spring 41 is attached at one end to the free end of thelifter and at its opposite end to the end of the box 7. l

Normally, the tension of the slivers will hold them taut so that therings 10 and stems 9 will be suspended in the positions shown in thedrawings. Should a sliver break, the ring suspended thereon will at oncedrop so that the lower end of its stem will strike the bed 13a and rockthe-,same downward. The tapper 17 will thus be brought against the heel19 so as to depress the same and thereby rock the lever 20 and exert anupward pull on the link 22, the dog 34 being released from the knock-offrod against the force of the spring 35. When the dog is disengaged fromthe knockoff rod, the spring 31 at once expands and forces theknock-ofi' rod outwardly, the movement being transmitted immediately anddirectly to the shipper bar so that the belt will be unshipped and theoperation of the machine stopped. Vhen the shipper bar is shiftedoutwardly through the Operation just described, the keeper arm 36, ofcourse, moves with it so that the lifter 40 is freed to rise under theiniiuence of the spring 41. The upward movement of the lifter carries itagainst the under side of the bed 13a and returns the latter to itsnormal position. Then, after the sliver has been repaired, the shipperrod is pushed manually inward so that the belt will be returned to thefast pulley and the machine set in operation, the dog 34 automaticallyengagingthe knock-olf rod under the influence of the spring 35.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is 1. The combination, ina" stop-motion mechanism, of a shipper-bar, a rocking bed, asliver-suspended stem above the bed, and operative connections betweenthe bed and the shipper-bar whereby upon a break in the sliver the stemwill be dropped upon the bed and rock the same and effect movement ofthe shipper bar to inoperative position, and means controlled by theshipper bar to return the bed to normal position.

2. The combination of a shipper-bar, a knock-olf rod acting constantlyon the shipper-bar, yieldable means acting on the knock-off rod wherebyto eect movement of the shipper-bar to inoperative position, a dognormally engaging the knock-oif rod to hold the same against movement, alever disposed above the dog, a link connecting one end of the leverwith the dog, and slivercontrolled means to engage the opposite end ofthe lever and actuate the same.

3. The combination of a shipper-bar, a knock-off rod acting constantlyon the shipper-bar, yieldable means acting on the knock-off rod wherebyto effect movement of the shipper-bar to inoperative position, a dognormally engaging the knock-off rod to hold the same against movement, alever disposed above the dog, a link connecting one end of the leverwith the dog, a heel suspended from the opposite end of the lever, arocking bed, a tapper extendingl from the bed over the heel, andsliver-controlled means for rocking the bed.

4. The combination of a shipper bar, a rocking bed, means controlled bythe bed to move the shipper bar to inoperative position, a lifter toraise the bed, and means carried by the shipper bar to hold the lifternormally lowered.

5. The combination of a shipper bar, a i

rocking bed, means whereby depression of the bed will effect movement ofthe shipping bar to inoperative position, a lifter arranged below thebed to raise the same when the shipper bar is moved to inoperativeposition, and a keeper carried by the shipper bar and normallymaintaining the lifter in a lowered position.

6. The combination of a shipper bar, a rocking bed, means wherebydepression of the bed will effect movement of the bar to inoperativeposition, a lifter pivotally mounted at one end below the bed, a springacting on the free end of the lifter to urge it against the bed, and akeeper arm secured to the shipper bar and projecting therefrom over thelifter.

In testimony whereof I hereunto aiiix my signature.

EMILE PLATIAU.

